Stiffness Tester Pneumatic - TNG1099

The TNG1099 Stiffness Tester Pneumatic is designed to assess the stiffness of woven and nonwoven fabrics according to ASTM D4032. The instrument operates by applying a controlled force through a plunger, which pushes the fabric through a defined orifice. The maximum force required to deform the fabric is recorded, providing a quantitative measure of its stiffness. The plunger has a diameter of 25.4 mm and moves a distance of 57 mm within a time interval of 1.7 seconds. The device is equipped with a digital force gauge that has a capacity of 500 N and an accuracy of 0.1 N. The pneumatic system operates at a pressure range of 0.4 to 0.7 MPa. This tester is suitable for a variety of textile materials, including those used in apparel, home furnishings, and technical textiles. The test method described in ASTM D4032 outlines the procedure for determining fabric stiffness through the bending cycle test, ensuring consistent and reproducible results.

Fabric Stiffness Tester Pneumatic, used for testing the stiffness of fabric by the bending cycle test method of ASTM.

Test Procedure

A plunger of 25.4mm (1 in) diameter pushes the fabric through a 38mm (1.5 in) diameter orifice for a distance of 57mm (2.25 in) in 1.7 seconds and the maximum force is recorded.

Use Range This test method is generally applicable to all types of fabrics, including woven, knitted and nonwovens, of any fiber content. Test Principle Use a round loading head to push a piece of flat and folded fabric sample into a platform hole so that the maximum pressure of the fabric sample through the hole is the stiffness of the fabric. Sample Preparation Take a sample plate from the sample to be taken about the size of about 102mm*204mm, no damage and defects of sample 5, the sample should be parallel to the length of the sample length direction. Place each sample face down and fold once into 102*102mm squares. After folding, flatten the wrinkles with a sample plate. Hand pressure must be maintained 1min so that the edge to avoid affecting the fabric hardness. All specimens must be maintained for at least 4 hours at 21±1℃ and relative humidity less than 65±2%.